USN-3885-1: OpenSSH vulnerabilities
Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 14.04
- Canonical Ubuntu 16.04
- Canonical Ubuntu 18.04
Description
Harry Sintonen discovered multiple issus in the OpenSSH scp utility. If a user or automated system were tricked into connecting to an untrusted server, a remote attacker could possibly use these issues to write to arbitrary files, change directory permissions, and spoof client output.
CVEs contained in this USN include: CVE-2018-20685, CVE-2019-6109, CVE-2019-6111
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- Cloud Foundry BOSH trusty-stemcells are vulnerable, including:
- 3586.x versions prior to 3586.79
- 3541.x versions prior to 3541.80
- 3468.x versions prior to 3468.101
- 3445.x versions prior to 3445.97
- 3421.x versions prior to 3421.117
- All other stemcells not listed.
- Cloud Foundry BOSH xenial-stemcells are vulnerable, including:
- 250.x versions prior to 250.9
- 170.x versions prior to 170.30
- 97.x versions prior to 97.57
- All other stemcells not listed.
- All versions of Cloud Foundry cflinuxfs2 prior to 1.266.0
- All versions of Cloud Foundry cflinuxfs3 prior to 0.60.0
Mitigation
Users of affected products are strongly encouraged to follow one of the mitigations below:
- The Cloud Foundry project recommends upgrading the following BOSH trusty-stemcells:
- Upgrade 3586.x versions to 3586.79
- Upgrade 3541.x versions to 3541.80
- Upgrade 3468.x versions to 3468.101
- Upgrade 3445.x versions to 3445.97
- Upgrade 3421.x versions to 3421.117
- All other stemcells should be upgraded to the latest version available on bosh.io.
- The Cloud Foundry project recommends upgrading the following BOSH xenial-stemcells:
- Upgrade 250.x versions to 250.9
- Upgrade 170.x versions to 170.30
- Upgrade 97.x versions to 97.57
- All other stemcells should be upgraded to the latest version available on bosh.io.
- The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 version 1.266.0 or later.
- The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs3 version 0.60.0 or later.
